Automatic open controlling means who stops submerged pump

The utility model relates to an automatic open controlling means who stops submerged pump, including support, gag lever post, cursory and limit control system, the support is fixed in storage tank inspection socket department, and it is perpendicular with the horizontal plane that the gag lever post passes the support, the gag lever post lower extreme with be arranged in the cursory fixed of storage tank liquid, fixed dog and the lower dog gone up on the body of rod, the limit control system includes the dead lever parallel with the gag lever post, opens, termination of pumping limit switch and respectively with open, termination of pumping limit switch contact connection's upper and lower contact arm, fixed surface on dead lever one end and the storage tank opens, termination of pumping limit switch is connected with submerged pump motor and power supply circuit, from top to bottom installs on the dead lever body of rod, the gag lever post can reciprocate along with liquid level variation in the storage tank